On the Nidus and Young of Pontobdella muricata. 199 



with Dr M'Bain, dredged up the nests of Pontobdella in the 

 Firth of Forth. Sir J. Dalzell had figured these nests and 

 the young in his " Powers of the Creator," vol. ii, plate 1, 

 and well described them in that work. Referring to Mr 

 Peach's description of the Nidus of Numertes gracilis, Dr 

 Wright stated that the nests of several annelides might be 

 found in the pools near Seafield, the eggs of which had been 

 hatched under his care, and he described the progress of 

 development in the embryo. He stated that at one stage the 

 embryo of the annelid exactly resembled that of Cydippe 

 pomiformis, formerly described by him to the Society. 



IV. — Notice of Snakes and Lizards from Old Calabar. By George 

 Logan, Esq., W.S. 



During the year 1857, the missionaries in Old Calabar 

 connected with the United Presbyterian Church in Scotland, 

 transmitted to some of the Fellows of the Royal Physical 

 Society a considerable number of specimens of snakes and 

 lizards, and of other interesting objects in various departments 

 of natural history. Of the reptiles a portion were sent to 

 Dr J. E. Gray, of the Zoological Section of the British 

 Museum, with a request that he would examine and name 

 them, that they might be described and submitted to this 

 Society ; and if there were any duplicates among them which 

 would be of service to the Museum, they might be retained. 

 Dr Gray acknowledged receipt of the specimens transmitted 

 to him, but he seems to have overlooked or forgotten the 

 conditions attached to their transmission, as in the spring of 

 last year (1859) he, upon personal application at the Museum, 

 only returned six of them named, without any notice of the 

 remainder. He was then written to, reminding him of the 

 terms upon which the reptiles were sent to him, and that it 

 was desirable that a list and description of them should be 

 submitted to this Society, but no answer was received to 

 this communication. The British Museum Catalogue, and 

 the Proceedings of the Zoological Society of London, have 

 furnished, however, to some extent the information awanting. 

 The following notice by Dr Gray appears in these Proceedings, 

 Part xxii., March 1858, page 154: — "Mr Logan kindly 



